lotka_volterra: Lotka-Volterra Predator-Prey Model

In patrickbarks/popmods: Tidy Population Models In Ecology

Description

Lotka-Volterra Predator-Prey Model

Usage

lotka_volterra(time, init_n, init_p, r, c, a, m)

Arguments

time	Vector of time points at which to evaluate system
init_n	Initial abundance of prey population
init_p	Initial abundance of predator population
r	Prey per-capita growth rate
c	Predator consumption efficiency (of turning prey into offspring)
a	Predator search/attack efficiency
m	Predator mortality rate

Value

Tidy data frame with three columns:

Time		Same values and units as argument time
Population		One of 'Prey' or 'Predator'
Abundance		Abundance of given population at given time

Examples

t <- seq(0, 50, 0.1)
lotka_volterra(time = t, init_n = 50, init_p = 30, r = 0.8, c = 0.04, a = 0.2,
               m = 0.3)

patrickbarks/popmods documentation built on May 21, 2019, 2:07 p.m.